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Serum eosinophil cationic protein (ECP) and pro-inflammatory cytokine levels before and after the trial in the (a) dietary controlled and (b) leukotriene receptor antagonist (LTRA) groups. The serum ECP, interleukin (IL)-4, and IL-5 levels in the LTRA group were significantly decreased after the LTRA treatment. Data were analyzed using Wilcoxon t-tests. Results are means ± SD. TGF = transforming growth factor; * p < 0.05.
